Once again, he mixed it with potassium dichromate and sulfuric acid, and again the experiment flopped. (scientificamerican.com)
And the last source, researchers report in an upcoming issue of Geology, was rain falling into the Andes Mountains 100 kilometers east of the Atacama, leaching material like dichromate ions into ground water flowing toward the desert; over millions of years, the mountains grew taller and the change in elevation forced more ground water toward the surface. (sciencemag.org)
Land of Epic Battles features Badach's new series of large, hand - made dichromate prints, made using film stills from ISIS training -LSB-...] (cranbrookart.edu)